In another 2011 study, Yamauchi et al. found that during intense training of athletes, those that showed a reduced level of SIgA had a greater chance of coming down with upper respiratory tract infections and/or an reactivation of latent viruses such as Epstein-Barr virus (EBV). In their study, the EBV-DNA levels tended to be higher in subjects who exhibit sore throat and cough. The SIgA level was significantly lower one day before the EBV-DNA expression.

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Green Facts:

Immunoglobulin’s deficiency may exist in a significant percentage of patients with chronic or recurrent infections of the upper respiratory tract. Adequate surface protection of the upper airway tract depends on intimate cooperation between natural non-specific defense mechanisms such as ciliary function and acquired adaptive immunity such as healthy SIgA levels (Daeli J, 2000).

An immunologic screening should be extended to patients who have persistent sinus infection, and Organic Chlorella is an option well worse using.